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Conference bulova::decw_jan-89_to_nov-90

Title:DECWINDOWS 26-JAN-89 to 29-NOV-90
Notice:See 1639.0 for VMS V5.3 kit; 2043.0 for 5.4 IFT kit
Moderator:STAR::VATNE
Created:Mon Oct 30 1989
Last Modified:Mon Dec 31 1990
Last Successful Update:Fri Jun 06 1997
Number of topics:3726
Total number of notes:19516

2787.0. "progamming problem" by LDPBS2::SYSTEM () Fri May 18 1990 11:33

 Not sure if programming errors go here?
    
    
 I'm getting an error using the XCOPY planes command on an NCD monitor, but
the same program runs fine on my 3100 with a DEC monitor.  Both are 8 plane
monitors.  Anyone run into this?  It returns a 'bad para err' when running
    on the NCD monitor.   What are the gotcha's when moving DFECwindows
    applications to other monitors?

Thanks 

 

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2787.1Only a couple legitimate errors here...DECWIN::FISHERPrune Juice: A Warrior's Drink!Fri May 18 1990 12:3921
When you say "monitor", most people in the workstation business think you mean
"the thing with the picture tube", which has no relavence at all here.  I am
assuming that you are talking about the NCD X terminal.

It could certainly be a bug in the NCD server, (or perhaps you have made a real
error, and the bug is in our stuff).  

There is no "param" error in the X protocol.  It should be either Value or
Match.  (Or perhaps the text translation in Xlib is strange, although I've never
seen this one).  In any case, the problems with copy plane are:

Value:  The bit-plane argument to CopyPlane must have exactly 1 bit set, and
  its value must be less than 2**<number of planes>.

Match:  The two drawables have to have the same screen (hard to imagine they
  would not on an NCD).

Hmmm.  I wonder if there is something funny about the way the NCD swaps the
bits in bitplane (assuming that it has a different bit/byte ordering from us).

Burns